Molding-machine.



M.l S. NAP.

MOLDING MACHINE.

APPLlcAnoN FILED fm2. 1911.

4 sains-SHEET 1.

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M. S. NAP.

MOLDING MACHINE.

APPLICATION FILED FEB. 2. IQII.

Patented July 23, 1918;

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attorney M. S. NAP.

MOLDING MACHINE.

APPLICATION FILED FEB.2| ISH.

1 ,273,649. Patented July 23, 1918.

4 SHEETS--SHEET 3.

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MOLDING MACHINE.

APPLICATION FILED FE8.2. l9ll.

l ,273,649. Patented July 23, 1918. l 4 SHEETS-SHEET 4.

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MEINDERD S. NAP, 0F HOLLAND, MICHIGAN.

MOLDING-MACHINE.

Application filed February 2 T 0 all whom t may concer/n.:

Be .it known that I, Mnmnnnn S. NAP, a

subject of the Queen of the bletherlands,`

and resident of Holland, in the county of Ottawa and State of Michigan, have invented certain new and useful Improvements in Molding-Machines, of which the followingl is a specification.

This invention relates to molding apparatus.

The dominant object of the invention is to provide an improved molding apparatus especially adapted for use in sand molding operations, whereby, the sand containing flask can bevreadily and properly shifted to Various positions, in order that the molding process will be expedited in general.

It is also an object of the invention and one of equal importance to provide a sand Acontaining flask which can be used to form feach section or portion of aplurahty of sand molds varying in size and design,

thereby, eliminating the necessity of the v'usual cope and other similar molding appliances commonly employed in conjunction with the conventional type of foundry vide a novel closure or follower board for the flask and means on the flask engageable with the follower board for maintaining the same in positive engagement therewith during the forming of the sand .mold or molds therein.

Another object of the invention lis to pro-- videl means for retaining the molding sand in a consistent body after the design of the pattern has been formed therein and the sand mold removed from the flask, the said means preventing the sagging of any portion of the sand mold when removed from the flask, thus, insuring an exact or true reproduction of the molding pattern.

Yet another object of the invention is to provide the sand containing or receiving flask .with tapping means which can be operated when the tampingof themolding sand aboutthe pattern has been completed,

vthe arranging of the pattern within the Specieation of Letters Patent.

Patented July 23, 1918.

Serial No. 146,232.

same, the placing of the molding sand therein and the removal of the completed sand mold therefrom.

The invention also comprehends a supporting table for receiving the flask thereon during the molding process; to receive the molding pattern thereon to facilitate removal of the same from the molding flask subsequent to the tamping of the sand thereabout; and to receive the sand mold when the same is removed from the flask completed and ready for the pouring operation, the table being capable of adjustment with relation to the vflask to allow the sand mold to be completely removed therefrom.

A still further object of the invention is to provide adjustable means for supporting the table, which means may be moved laterally in order that the tables varying in size and shape may be substituted to accommodate molds of different designs and sizes.

Another important feature of the present invention resides in the provision of a portable carriage for supporting the improved molding apparatus so that the same may be ported to various places during the molding operation, and as a consequence, obviating the necessity of handling the heavy and cumbersome molding elements as well as the articles molded thereby.

Other objects relate to consideration of economy of production, durability in use, and convenience in operation of the several mechanisms or parts entering into the conv struction of elements and the above defined general organization of said elements.

As hereinafter pointed out in the claims, some of the novel features of the present invention reside in certain cooperative rela-- tionships existing between certain of the elements, of which the disclosed constructional embodiments are merely illustrative rather than definitive, whileother novel features reside in the general organization of such elements, and still others reside in the construetional characteristics of the particular embodiments herein disclosed as the preferred instrumentalities through which to realize such cooperative' relationships and general organizations.

One embodiment of the subject matter of the specification is shown by way of illustration in the accompanying drawings, in which:

Figure 1 is aside elevation of the iinproved molding apparatus;

Fig. 2 is a top plan thereof;

Fig. 3 is an end elevation of the same;

Fig. 4l is a vertical section in elevation taken through the improved molding flask;

F ig.V 5 is a fragmentary detail partly in y section showingthe connection of the table elevating and lowering` means with the operating means therefor v;v

Fig. 6 is a detail in section taken on the line 6-6 0f Fig. 3; and

Fig. 7 is a fragmentary detail in section of the mounting of the molding flask elevating and lowering means.

Similar characters of reference are employed in all of the above described views to indicate corresponding parts.

Referring now more specifically to the several figures of the said drawings, there is vprovided a carriage designated in its enupon, whereby the improved molding apparatus, which-will be hereinafter more fully described, may be ported from place to place during the molding process.

A plurality of vertically disposed standards 5 having offset'feet 6 formed upon the lower extremities thereof are arranged Within suitable seats as formed upon the upper faces of the-side bars 2 at points in proximity to certain of the ends thereof. To'secure the standards 5 in position within their respective seats upon the sidebars 2, set screws, connecting bolts or the like 7 are passed through suitably disposed apertures asy formed within the feet 6 into engagement with the side bars 2. Laterally disposed supporting arms 8 are formed integral with the upper endsof the standards 5 and support therebetween a squared sleeve Y 9, which sleeve is provided with a plurality engaged with the opposite extremities of y Vof spaced apart screw threaded openings into which set screws 10 may be turned. Slidable carriages 11 are arranged upon the laterallyr disposed supporting arms 8 andk have formed therein, preferably intermediate the side portions thereof, elongated slots' 12, the said slots receiving therethrough the upper extremities of bolts 13 iinmovably said lateral bearing arms and havingturned into engagement with the screw threaded upper extremities of locking nuts 14, wherev ranged guide elements 15 are carried upon` the upper faces ofthe carriages 11 and are adapted to be engaged with pairs of longitudinallyl disposed slots or ways as formed within the opposite side portions of a table 16, the said slots or ways being designated by the numeral 17. By so engaging the guide element 15 with the ways 17, it `will be appreciated, that accidental displacement of the table from the carriage 11 will be prevented.V It is to be noted, that-the upper extremities of the guide elements 15 extend for a distance above the upper face of'- the table member 16, the purpose of which will be subsequently obvious. A Idepending squaredV shank 18 is affixed to the under face of the table 16 at a point, preferably, concentrically thereof and is slidably received within the squared sleeve 9 carried between the lateral supporting arms ,8. Upon the lower extremity of the squared shank 18, there is arranged a pair of oppositely disposed laterally extending fingers A19, which lingers are engaged yby means for elevating and lowering the table 16, which means will 'be hereinafter more fully described.

Obviously,.by mounting` the table 16 upon the squared shank 18, the same may be adjusted vertically to suit various conditions.

Referring now tothe novel molding flask, I employ a receptacle, substantiallyr square in cross section and indicated by the numeral 20, the said receptacle having beveled side and end walls whereby the molding sand as placed therein may be readily tamped or compressed intoa consistent bodyVV to facilitate the molding operation. A follower board 21 is provided and is of a size and shape complemental to the larger end of the molding flask 20, the said follower board being provided with beveled side and end pieces to correspond with the side and similarly flanged as vat 2&1-, whereby,' to permit proper engagement Vof the same with the molding flask 201, during the molding process. Upon the'flanges 23^formied upon the larger end ofthe molding flask 20, .there V is slidably varranged a plurality of plates,

generally designated by the numeralv 25, thesaid rplates being of a length corresponding to the length and width of the flask 20 and also being secured to the said flanges-23 for sliding movement by means of a plurality of fingers 26 received within elongated slots 27 formed in the said slidable plates 25. These sliding plates 25 serve as means for retaining the sand mold within the flask 2O upon temporary removal of the follower board 2l, whereby, the pattern, which will be subsequently described, may be removed therefrom.

A pattern 28 of any suitable design or formation is provided and instead-of being arranged upon the usual drag plate in order that the same may be properly supported within the molding flask 20, it is provided with a plurality of' laterally extending flanges 29, the said flanges being of a width sufficient to permit the same to rest upon the shdable plates 25 and to lie adjacent the flanges 24 formed upon the beveled side and end pieces of the followerl board 2l. A plu ality of depending fingers or pins 30 are arranged upon one side of the flanges 29 and are received through suitably formed openings 31 in the follower board 2l. Thus, it will be understood, that lateral movement of the pattern 2S with relation to the molding flask 2O will be prevented and as a consequence, a proper and true reproduction of the said pattern will be permitted in the molding sand.

With a view toward providing means whereby the follower board 2l may be securely maintained in proper position upon the proper end of the molding flask 20, a plurality of oppositely disposed bifurcated lugs 32 are affixed'to certain of the side portions of the said molding flask 20 and pivotally receive therebetween as at 33,cateh arms 34, the said arms being provided with suitable handle pieces 35 whereby the same may be moved into and out of engagement with the follower board 21 when it is desired to secure the same in position or remove the same from the molding flask 20.

`When the pattern 28 has been properly arranged within the molding flask 20 and the follower board 2l has been clamped into engagement therewith by reason of the catch arms 34, sand is placed within the molding flask 2O and is tamped about the pattern 28, whereupon, a screen 36 is placed ther-cover and a second layer of sand then applied over the said screen until the flask 20 has been entirely filled. By arranging the screen 3G within the molding sand, which shall indicate for the purpose of conven ience by the letter S, meansl are provided whereby the said sand when removed from the flask 20 as a consistent body will be prevented from crumbling or allowing a portion of the design of the pattern 28 as formed therein to vary or sag in anyway.

' Thus, an exact and true reproduction of the pattern is at all times insured.

To facilitate the pouring of the molten metal, after the sand mold has been properly formed, there is arranged upon certain of the flanges 29 a vertically disposed finger 37, which finger is 0f height to approximately correspond to the depth of the sand molding flask 20. Consequently, when the pattern is removed from engagement with the flask 20, the linger 37 will be withdrawn, leaving a channel or pouring opening communicating with the design formed in the sand by engagement of the pattern 2S therewith. Horizontally alined bearings 38 are affixed to the opposite bevel side portions of the molding flask 20 and loosely receive therein, means for elevating and lowering the said flask during the molding operation, which means will be subsequently described. To insure proper turning of the flask 20 by means of the elevating and lowering means above mentioned, there is arranged upon one beveled side portion thereof, a plurality of bifurcated supporting arms 39,7said arms having journaled in said bifureated portions rollers 40, whereby to permit sliding engagement of the molding flask with the upper face of the table 16 during the turning of the same. A plurality of hammers 4l are secured to certain of the side portions of the molding flask 20 through the medium .of spring arms 42, these arms in turn being secured to the said side portions of the lnold by means of rivets or other similar fastening devices. By mounting the hammers 41 upon the spring arms 42, it will be readily understood that the same may be drawn away from the sidesv of the molding flask 20 and then released, whereupon, they will be abruptly forced into contact with the said sides by reason of the spring arms 42. Hence, the sand mold as arranged within the flask 2O may be readily loosened .from the side walls thereof when it is desired to remove the same. Referring now to the means for elevating and lowering the flask 2O during the molding operation, a plurality of vertically disposed bearing pillars 43 having offset feet 44 formed upon the lower extremities thereof are arranged at opposite points upon the side bars 2 of the carriage l, the said offset feet 44 being received within eomplenlentally formed recesses or seats in the side bars, and secured in position therein by means of set screws 45 passing through suitably arranged openings therein 'into engagement with the Said side bars. ln mounting the bearing pillars 43 upon the side bars 2 of the carriage l, the same are preferably arranged substantially intra-mediate (heir ends, although, it will be understood that the same may be located at various points throughout the length thereof, such as conditions or preference may dictate. The upper extremities of the bearing pillars 42% are provided with vertically disposed reduced portions 46, which portions have slidably engaged therewith j journal boxes 47. To secure the journal boxes 47 in fixed relation to the vertically disposed reduced portions 46, set screws 48 are turned through the vupper portions thereof and have their lower extremities )bearing upon the upper edges of the said extensions 46. Thus, by turning Vthe set screws'48 in the desired direction, the journal boxes 47 may be either raised or lowered with respect to their respective extensions 46 to the desired position. It of course, will be understood that suitable bearing openings are formed within the journal boxes 47 and that to permit the introduction of a shaft thereinto, the extensions 46 must be necesmeral 49.

A transversely disposed shaft 50 having the opposite extremities thereof reduced as at 51 is arranged upon the carriage l and has the said reduced extremities 51 rotatably mounted within the bearing openings formed in the journal boxes 47. As shown in the Fig. 7, the extremities 5l ofthetransverse shaft 50v extend beyond the bearing openings within the journal boxes 47 and are engaged with suitable anti-frictional bearing means 52, which means are secured to the outer faces of the journal boxes 47 by means of set screws 53 or the like. gear 54 is keyed upon the transverse shaft 50, preferably, intermediate the ends thereof and extends longitudinally of the said4 carriage to a point in proximity to one of the ends thereof. Engaged with the sides of the segmental gear 54 are a plurality of angularlydisposed arms 55, the said "arms being provided with suitable bearing openings whereby they may be arranged over the transverse shaft 50. The said angularly disposed arms 55 are provided with, substan- V ltially intermediate their ends, offset portions v 56 andhave formed upon their outer or free n extremities bearings 57, which bearings receive therein stub-axles 58, the opposite extremities of which are extended into engagement with the bearings 38 as secured to certain of the beveled side portions of the mold-. ing flask 20. By offsetting the arms 55, as

at 56, it will be evident, that the same will be permitted to freely receive the moldingV flask 20 therebetween and should it bec-ome A. segmental or normal positions a pivotal catch member 59 is carried upon one of the bearing pillars 43 -and is adapted to be moved into engagement with one of the offset portions 56 of the arms 55. As additional means for maintaining the arms 55 in their lowermost positions, supporting arms 60 are secured or formed integral with certain of the sides of the bearing pillars k43 and have formed in their upper extremities squared openings through which wedge members 6l carried upon flexible connections 62 secured to the said pillars asv at 63, are passed. It will be readily seen, that the projecting ends of the wedge members 6l will offer ei'iicient stops for the said arms 55, should for any reason the pivotal catch 59 become disengaged therefrom.

Upon the remaining or rear extremity of the carriage l, other bearing pillars 64 having offset feet 65 formed upon the lower extremities thereof are arranged within suitable seats or recesses formed within the side bars 2, the said offset feet 65 being provided with suitable openings whereby yfastening devices 66 may be passed therethrough into engagement with the side bars. Bearing arms 64 are formed integral with the upper portions of uthe bearing pillars 64 at points adjacent certain of the ends thereof and serve to rotatably support a transversely disposed shaft 67 therebetween. Upon the said shaft 67, at a point substantially intermediate the ends thereof there is formed an enlarged annular portion 68, which portion provides an eflicient winding drum for receiving thereabout a cable 69, the purpose of which will be subsequently apparent. As will be noted, one end of the shaft 67 projects beyond its adjacent bearing arm 64 and carries thereon a disk 70, Vthe said extension affording an efficient winding ,drumV whereby a cable 7l may be coiled about the same while the dislr 70 serves to prevent lateral ldisplacement of the said cable. A guide member 7 2 is secured to that bearing pillar 64 as adjacent the extensionof the shaft 67 and has rotatably mounted within the longitudinal bore thereof a plurality of idlers 72, whereby, a cables 71 as passing therethrough will be permitted to move freely. Vertically disposed extensions 7 8 are formed upon the upper portions of the `bearing pillars 64 and have formed Ytherein adjacent their respective upper ends bearing openings through which a second transversely disposed shaft 74 is passed. ing means may be arranged wit-hin the bearing openings formed in the extension 7 3, not shown. One end of the transverse shaft 74 is extended beyond its respective extension Suitable anti-frictional bear-l 7 3 and has-fixedly mounted thereon a bal-Y v llevaste shaft 74, there is ixedly mounted a gear 77, the said gear being so positioned as to be 'constantly in mesh with the segmental gear 54 as carried upon the transverse shaft 50. Hence, by rotating the balance wheel 75 through the Imedium of the crank handle 76, such rotary motion of the gear 77 as will be imparted thereto by reason of its mounting upon the shaft 74 will be transmitted in turn to the segmental gear 54 and as a consequence, the said segmental gear will be rocked upon its respective shaft 50. By rocking the segmental gear 54, a similar movement will be imparted to the arms 55 and therefore, the free extremities thereof, that is, those extremities of the same which 'are engaged with the molding Hask .2O will be caused to rise or lower, depending upon the movement of the said segmental gear, thus, raising or lowering of the molding flask 2O in turn. To facilitate movement of Jthe segemental gear 54 in a direction to cause the elevation of the molding flask 20, a contractile coiled spring 7 S is engaged with said gear 54, as at 79 and extends diagonally therefrom into engagement with a flooring or shield 80 arranged upon the carriage 1 as atl 81. Although it is desirable to provide means whereby downward movement of the segmental gear 54 will be facilitated in order that the arms 55, that is, those ends of the same as engaged with the molding flask 20, may be elevated, it is also desirable to provide for means whereby excessive dowuward movement of the said segmental gear 54 will be prevented. '.lo this end, l engage with the ofl'set portionsl 5G the said arms, a plurality of contractile coiled springs S2, extending Vthe said springs down ward into engagement with suitable lugs S3 formed upon the supporting arms 60. ly so engaging the contractile, springs 82 with the offset portions 5G of the arms 55, when the segmental gear 54 is moved downwardly for a Ydnitancc to cause proper elevation of the molding flask 20, the same will be placed under a tension sullicient to retard and stop further downward movement of the said segmental gear. A metal rod 84, is engaged with the upper marginal edge of the segmental gear 54 as at 85 and is then bent downwardly upon itself as at 86 and extends to a point in proximity of lthe rear end of the carriage 1, whereupon a loop 87 is formed therein by bending` the free end upon itself, in order that the free end of the cablev (39 may be passed into engagement therewith. In addition to serving as means for permitting connection of the cable 69 with the rod Sl, the loop also hasl engaged therewith a weighted element 8S, which weighted elementi acts in conjunction with the contractile coiled spring 78, to facilitate downward more/ment of the segmental gear 54 and te partly counter-balance the weight of the molding flask 20 as arranged upon the free ends of the arms 55.

To properly brace the bearing pillars 43 and (34, bars 89 extending longitudinally of the carriage 1 may be and preferably are engaged or formed integral with the adjacent marginal edges of the same and thereby insure the maintaining of the said bearing pillars in rigid spaced apart relation.

Other bearing pillars 90 having offset feet 91 formed upon the lower extremities thereof are arranged upon the side bars i). of the frame 1 adjacent the standards 5 and are secured in position thereupon by means of suitable fastening devices 92 which are passed through apertures formed in the offset feet 91 into engagement with the side bars A shaft 93 is arranged transversely of the carriage 1 and has the ends thereof journaled within the baring openings as formed in the said bearing pillars 90, one end of the said shaft 93 extending beyond .its respective bearing pillar and having lixedly mounted thereon a rearwardly extending arm 94, the free extremity of which is bent or ol'l'set as at 95 and is engaged by the free end of the cable 71, the said cable passing through a suitable eyelet 9G carried upon the offset portion 95 and knotted. Laterally extending arms 97 having their free ends bifurcated are lixcdly mounted upon the shaft 93 by means of set screws 98 turned into engagement with the same and bearing upon the said shaft. lVithin the bifurcated free ends of thel arms 97, connecting links 99 are pivolally supported and have their lower extremities apertured whereby the lingers 19 carried upon the lower portion of the squared shank 18 may be loosely engaged therewith. By this arrangement, it is to be understood that when the cable 71 is caused to coil about lhe drum 7() on the transverse shaft 67 upon rotation thereof, the oll'set extremities 95 of the arms 94 which normally lie in their uppermost positions are caused to more downwardly, and consmlluenlly, an upward movement is imparted to the opposile or remaining free ends thereof. llfenee, upon the upward movement of the said remaining or free ends of the arms 94, the squared shank 19 will be elevated by reason of its engagement with the connecting links 99. rlhereil'ore, (he table 1G may be raised and also adjusled to various heights.

To provide means for governing the movement of the arm 94, there is arranged upon one of the side bars 2 of the carriage il adjacent certain of the bearing pillars 43, a diagonally extendf ieg arm 190, the base of the arm being offset as at 101 whereby suitable fastening devices may be passed through the same into .engagement with the adjacent iso side .bars A series .ofuniform spaced apart openings 102 are .formed within the diagonally extending arm 100 and are adapted to receive therein a stop pin 103, the stop pin being of lengthto Aproject, beyond or to one side of:the said arm 100 and to engage the upper marginal edge of the arm 94, whereby to limit the movement of the same. Thus, by varying the positioning of the. pm 103 in the various openings 102, the extent of movement 'of the arm 94 may be accordingly controlled.

l,Upon the free extremity of one of the arms there tis arranged a bea-ring 104, which bearing is adapted to Yreceive through the transverse'bore therein a slidable locking bolt 105 as pivotally engagedto an operating lever 106, vthe said operating lever in turn, being pivotally mounted as at 107 uponfa laterally extendino'. lu g 108 also car# ried-upon the said extremity of the said arm 55. Acoilspring 109 is engaged with the said bearing 104 and has its remaining end connected to a pin 110 carried upon the slidable bolt A105. AThus,\the said slidable bolt 105 will be normally caused to remain Vin operative position, thatV is, in engagement with a suitable `keeper 111 asvcarried upon the adjacent side wall of the molding flask 20. To -maintain the slidable bolt 105 out of engagement kwith its respective keeper 111, a notched extending arm 112 is formed upon a portion of the arm 55 and is adapted to receive therein the freeV end of the operating lever 166. By engaging the slidable bolt 105 with the keeper 111 arranged upon .the molding flask 20, rotation of theV tions, consequently, causingl the offset ex-V tremity of the arm 94 to be moved into its uppermost position and the cable 71 to be partially 'removed from the -drum 70 on the transverse shaft 67. Further, the segmental gear 54 Iis moved to its uppermost position whereupon, the free ends of the arms 55 will be permitted to swing to their lowermost positions andas a consequence, the molding flask 20 will be permitted to rest fully upon the said table 16. It is to be understood, that the larger end of the molding flask 20 is up, whereby, .to .permit the slidable plates 25 to be moved inwardly and thefpattern together with its flanges 29 arranged over the said openend, .the said flanges resting vupon the upper faces ofthe slidable plates 25. The follower board 21 is then lllled with sand, whereupon', the' same is arranged over the `moldin`gflask 20,` the pins 30 ascarried upon the flanges 29 projecting through theopen` ings 31 therein and preventing undue lateral movement ofthe same as well as the pattern 28with relation to the molding flask. The pivotal catch arms 34 are now swung into engagement with Athe follower board 21, whereupom'the armsl 55 are elevated through the medium of the segmental Agear 54 and the gear `77 to permit `the turning of theY molding flask 20 lupon itself and the reversing of the positioningthereof. With the positioning of the molding flask 20 reversed, the smaller end thereof will be arranged upward, thus, permitting the molding sandV to bereadily poured intothe same andtamped. As hereinbefore stated, when the molding flask 20 has been partly filled with the sand, the screen 36 is thenlinsertedtherein and-the filling of theflask-then continued. With the molding flask 20 entirely filled withithe sand and the sand tamped, the catch 59 as engaged with one-of the oset portions l56 of the arms 55 is ldisengaged therefrom, thus, permitting the molding flask to -be again raised through the medium of the segmental gear 54 and the gear 77. l/Vhen the molding flask 20 has been raised sufficiently to permit the turning of the saine to its first position, the same is then lowered by pulling =itdown wardly and rotating the shaft 74 carrying the gear 77 in a reverseor counter direction. lVith the molding flask 20 again lowered,the catch 59 is rengaged with theoflset portions 56 of the arm 55. The pin 103arranged within certain of the openings 102 of the diagonally extending arm 100, whereby to limit the movement of the arm94, `in order that vertical movement of the table 16 will be controlled. The catch 59 is again disengaged from the offset portion 56 of the arm 55 andthe slidable bolt 105 is engaged with its respective keeper 111 carried by the molding flask.

The molding flask isV now elevated fora slight distance by means of pins 15 and upon further elevation of the molding flask, the said pattern Lbeing disengaged from the sand -mold may be readilyV removed. Upon removal of the pattern A28 from'engagement with the sand,the lingerv 37 as carried thereby will cause theformation of a vertically disposed channel through the sand mold, the said channelcommunicating with the form therein, in order that the molten metal may be poured into the same. Vith the follower board 21 removed from the molding flask 20, ythe pin 10B is disengaged from the Vparticular opening within the arm 100 land the moldingy flask -20 is again lowered onto the said table 16. At this time, the sides of the molding flask are tapped by the hammers d-l as carried thereby to cause the sand mold to be disengaged from the side walls thereof. Vith the sand mold free or loosened, the flask 20 is released, whereupon, the arms 55 will be caused to instantly rise, by reason of the contractile spring 78 and the weight 88 as engaged with the segmental gear 511. Simultaneous with the raising of the flask 2t), the table 16 will be caused to lower by reason ol the weight of the sand mold thereon. Such lowering of the table 16 will cause the arm 94 to be rocked by reason of its engagement with the shaft 93, thereby withdrawing or uneoiling the cable 71 from about the extension oli' the shaft 67, rotating the said shaft, whereupon, the cable 69 as engaged with the winding drum 68 will be coiled thercabout and the segmental gezr 54 as engaged by the free end ol the said cable 69 is moved into its lowermost position. lith the parts ol the apparatus so positioned, the sand inold may be readily removed from the table 16 and the forming ot' the second sand mold, whereby to complete the casting. then carried on. lVhen it is desired to again elevate the table 16 and lower the flask 20, the said flask may be drawn downwardly or it' the same is of material. weight, the balance wheel may be rotated in a counter direction by means of the crank handle 76, thus, causing the segmental gear 5ft and the arm 94 to assume their normal positions. Obviously, the contractile coiled spring 82 will prevent the segmental gear 54 from moving downwardly too far.

By arranging my improved molding apparatus upon the carriage 1, it will be understood that the same may be readily ported from place to place, duringl the molding process, thereby, obviating the necessity of? handling the heavy and cumbersome elo` ments of the said aplviaratus or the handling of the molded article.

Should the table 16 not be ot' a size to properly support the moldiiu;` flask 2t), the same may be readily removed from the lateral supporting arms and a second table of suitable size substituted in lieu thereof.

Should it become necessary to use my Vimproved molding apparatus in the ilorming o'tf molds of greater size, the slidable journal boxes arranged upon the reduced extensions L16 of the bearing pillars lil may be adj usted to raise the shaft as mounted therebetween through the medium oli the set screws 4S. By varying the positioning o'l the said shaft, the arms 55 will as a consetuienw, be also raised with relation to the table 16. thereby, allowing` proper engagement ot' Athe larger molds when placed upon the said table 16 within their respective flasks.

As many changes could be made in the above construction and many apparently widely different embodiments of? this invention could be made without departing 'lrom the scope thereof, it is intended that all matf ter contained in the above description or shown in the accompanyinf)l drawings shall, as hereinbelore stated, be interpreted as illustrative and not in a limiting sense. 1t is also to be umlerstood that the language used in the following claims is intended to cover all ot the generic and specific 'features ol the invention herein described and all statement ol the scope ol'v the invention, which, as a` matter of: language might be said to fall therebetween. t

Having described my invention, what 1 claim as new and desire to secure by Letters Patent, is:

1. ln molding apparati'ls, a supporting table, flask support ing means, means l'or moving said table, other means for moving said flask supporting means, and means tor independently or collectively operating said moving means.

2. In molding apparatus. a supporting table, a flask, means 'tor pivotally supporting and moving said flask vertically` means lor moving sa id supporting table vertically, and other means engaged with said flask and table n'ioving means for operating the saine collectively.

3. ln molding apparatus, a sumiorting table, a flask, means for pivotally supporting and moving said flask vertically, nuans for moving the supporting table vertically, and other means engaged with said flask and table moving means for operating the same iiulependently or collectively.

4.111 molding apparatus, a si'lpporting frame standards arranged upon said supporting trame, a table carried by said stainlards and vertically :uljustable with relation thereto, a flask, means cngageahle with the flask ilor pivotally supporting the same and moving the same .'ei't1irall v. andmeans on the frame connected to said table and flask supporting means 'for operating the same independently or collectively.

1n molding apparatus, a supporting trame, stamlards arranged upon said trame, laterally adjustable carriages supported on portionsl ot said stainlards, a table removably engaged \vith said carriages and being vertically :uljustnblc with relation to the standards, flask supporting means, and means on the frame connected 'to the table and flask supporting meansI lor moving the same indepemlently or collectively.

6. ln molding apparatus, a supporting iframe, standards arranged upon said lrame, laterally adjustable carriages supported on portions of the standards, a table removably arranged on said carriages, said table being adjustable vertically with relation, to the standards, a flask, means for pivotally supporting and moving said flask vertically, and means on the frame connected to said table and flask moving means for operating the same independently or collectively.

7. In molding apparatus, a supporting frame,supported by said supporting frame, laterally adjustable carriages arranged on portions of the standards, a table removably engaged with said carriages, said table being adjustable vertically with relation to the standards, a flask, means for pivotally supporting and moving said flask vertically, and means on the frame for operating the table and flask moving ,means collectively.

8. In molding apparatus, a supporting frame, a table mounted for vertical movement upon said frame, a flask, means for pivotally supporting and moving said flask vertically, means engaged with said table and said flask moving means for operating the latter uponY movement of the former, and means engageable with said table and Vflask moving and engaging means for controlling movement thereof. 1

9. In molding apparatus, a supporting frame, standards on said supporting frame, laterally adjustable carriages supported on portions of said standards, a table removably engaged with said carriages, said table being adapted to move vertically with relation to the standards, a rock arm engaged with the table and extendino` longitudinally of the supporting frame, a flask, means for pivotally supporting and moving said flask vertically, operating means arranged in spaced relation to said standards, flexible connections engaged with the ends of said rock arm andV flask moving means and the operating means, said operating means being actuated upon vertical movement of the supporting table to collectively move the flask supporting and moving means vertically. Y

10. In molding apparatus, a supporting frame, standards carried by said supporting frame, carriages slidably supported by portions of said standards, a table removably engaged with said carriages,1said table being adapted to move vertically with relation to the standards, a rock arm mounted on the frame and engaged with the vertically movable table, means for pivotally supporting and moving a flask vertically, operating means on the frame in spaced relation to said flask and table, means for connecting the rock arm and the flask supporting and moving means to said operating means, said flask'supporting and moving means being moved vertically upon movement of the table, and means engageable with said rock arm for limiting movement thereof to permit independent moving of the last supporting and moving means.

` ll. In molding apparatus, a supporting frame, a vertically movablesupporting tadinally of the supporting frame, means carried on one extremity of the rock armengaged with the vertically movabletable, another shaft mounted between the remaining bearing pillars, and means arranged on said third shaft and connected to the-flask moving means and to the rock arm, said flask moving means being actuated upon movement ofthe vertically movable table and the rock arm, and means engageable with said rock arm for preventing movement of the same to permit independent movement of the flask supporting means.

12. In molding apparatus, a supporting frame, standards arranged on said support- .Y

ing frame, a plurality of carriages slidably supported by portions of the standards, a supportingtable removably arranged upony the slidable carriages, said supporting table being adjustable vertically with relation to the standards, a plurality of pairs of bearing pillars arranged onrthe supporting frame, Y

journal boxes adjustably mounted upon certain of the pairs on said bearing pillars, aV shaft mounted in said journal boxes, power transmitting means lmounted on said shaft, flask supporting and moving means engaged. and carried ,by said power transmitting means, a transverse shaft journaled in certain other of the pairs of said bearing pillars, a rock shaft mounted on said transverse shaft, means engaged with one extremity of the rock shaft for connecting the-same with said vertically movable table, another `shaft mounted between the remainingpairs of bearing pillars, gearing on the vsaid last shaft engaged with the power transmittin means and adapted to move and be move by the same, means for connecting one end of the rock arm to said gearing, the gearing being rotated upon vertical movement ofV the movable table whereby to actuate the flask supporting means, and means on the same engageable with said rock arm for limiting movement thereof to permit movement of the flask supporting means independently of the same. I

13. In molding apparatus, a supporting frame, standards arranged upon said sup? porting frame, a plurality of carriages slidably supported by portions of the'standards, Y

tion to the standards, a plurality of pairs of bearing pillars arranged on the supporting frame, a shaft adjustably mounted between certain of the pairs of said bearing pillars, power transmitting means carried by the shaft, flask supporting and moving means engaged with a power transmitting means, said flask Supporting and moving means being adapted to pivotally support a flask, a second shaft journaled between the remaining bearing pillars, gearing on said second shaft engaged With the power transmitting means, means connected to the vertically movable table and the gearing for imparting motion thereto upon movement of said table, means carried by the same and engageable with said connecting means for permlttin independent movement of said gearing, an means on the flask supporting and moving means engageable with the same for preventing pivotal movement thereof when raised.

' In testimony whereof, I affix my signature hereto.

MEINDERD S. NAP.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. Q. 

